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    <title>Document</title>
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    <script>
        /* 
           1.比较运算符  : >  <  == === != >= <=
           2.返回值是布尔值
           3.== 由隐式转化的过程;
           4.===  比较值 和数据类型;
           5.学习的原则

           输入:
           处理:
           输出:
        */
       console.log(8 > 2);
       console.log(18 = 18);
       console.log(18 == '18');
       console.log(18 === '18');
    </script>
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